الفهرس 
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Abstract
Two field experiments were carried out during the two successive summer seasons of 2017 and 2018 in a private farm at Kafrelsheikh Governorate, to investigate the effect of irrigation intervals (every 10days, 15ays, 20ays and 25days) and foliar spray with Kaolin (at 6% 60 g/l and Glycine betaine at 2 g/l ) on vegetative growth, chemical composition, fruit yield and quality of some tomato hybrids under Kafrelsheikh conditions.
The first study included 12 treatments which were resulted from the combinations between four irrigation treatments and three tomato hybrids (Alissa F1, Carmen F1and Super strain B). Results clearly showed that using